Do you think i have whiplash?

i got in a rely bad gokart acccident. i wasnt wearing a seatbelt and i was stopped and a girl hit me really bad from behind. she was going super fast. i jerked forward and back alot, hurt my thumb, and bruised my elbow. its a day later and my neck has been hurting all day. its very hard to move in any direction. ive also had a headache pretty much the whole day. the bach of my neck near like the base of my neck has been swollen it looks like i have a big bump also swallowing is very deficult and the front of my neck hurts to the touch. moving my shoulders hurts abit as well. do you think i could have whiplash or maybe just something else?